US3087985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color pick-up tube with circuit for minimizing cross-talk
Assignee: US Philips Corp
•
Filing: 1959-01-26
•
Granted: 1963-04-30
•
Expires: 1979-01-26
Abstract
No abstract record available.
Inventors
- 👤 Heijne Leopold
- 👤 Rooy Antonius Johannes De
- 👤 Stap Sjoerd Theunis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:36
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/10; H04N23/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
MEANS FOR CONVERTING A RADIATION IMAGE INTO COLOR COMPONENT SIGNALS COMPRISING A CAMERA TUBE HAVING A RADIATION SENSITIVE TARGET PLATE OF SEMICONDUCTIVE MATERIAL, A PLURALITY OF ALTERNATE ELECTRODE ELEMENTS ON SAID TARGET PLATE ARRANGED IN AT LEAST TWO SEPARATE ELECTRICALLY CONNECTED GROUPS, THE TARGET ELEMENTS ASSOCIATED WITH SAID GROUPS OF ELECTRODE ELEMENTS HAVING DIFFERENT SPECTRAL RESPONSE, A NET-SHAPED ELECTRODE IN FRONT OF SAID PLATE, MEANS COMPRISING A CATHODE FOR SCANNING THE FRONT OF SAID PLATE WITH AN ELECTRON BEAM, MEANS APPLYING A POSITIVE VOLTAGE ON SAID NET-SHAPED ELECTRODE RELATIVE TO SAID CATHODE AND EXCEEDING THE FIRST EMISSION EQUILIBRIUM VOLTAGE OF THE MATERIAL OF SAID TARGET, AND MEANS APPLYING DIFFERENT POSITIVE BIAS VOLTAGES TO SAID GROUPS OF ELECTRODES,
Claim 2
Dependent Claim
117 words
MEANS FOR CONVERTING A RADIATION IMAGE INTO COLOR COMPONENT SIGNALS COMPRISING A CAMERA TUBE HAVING A RADIATION SENSITIVE TARGET PLATE OF SEMICONDUCTIVE MATERIAL, A PLURALITY OF ALTERNATE ELECTRODE ELEMENTS ON SAID TARGET PLATE ARRANGED IN AT LEAST TWO SEPARATE ELECTRICALLY CONNECTED GROUPS, THE TARGET ELEMENTS ASSOCIATED WITH SAID GROUPS OF ELECTRODE ELEMENTS HAVING DIFFERENT SPECTRAL RESPONSE, A NET-SHAPED ELECTRODE IN FRONT OF SAID PLATE, MEANS COMPRISING A CATHODE FOR SCANNING THE FRONT OF SAID PLATE WITH AN ELECTRON BEAM, MEANS APPLYING A POSITIVE VOLTAGE ON SAID NET-SHAPED ELECTRODE RELATIVE TO SAID CATHODE AND EXCEEDING THE FIRST EMISSION EQUILIBRIUM VOLTAGE OF THE MATERIAL OF SAID TARGET, AND MEANS APPLYING DIFFERENT POSITIVE BIAS VOLTAGES TO SAID GROUPS OF ELECTRODES,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |